EPA TRI Facility · Petroleum Bulk Terminals
Marathon Petroleum Co - Wellsville Oh Asp Terminal
Wellsville, OH · Parent: Marathon Petroleum Corp
- Total releases
- 5.0K lbs
- Chemicals reported
- 11
- Carcinogens
- 4
- Primary pathway
- Air Releases
MIXED Form-R mix
Marathon Petroleum Co - Wellsville Oh Asp Terminal: how the 5.0K lbs splits
5.0K lbs across all reported pathways
- Air Releases 2.8K lbs 56.8%
- Off-site Transfers 2.1K lbs 43.2%
Marathon Petroleum Co - Wellsville Oh Asp Terminal's 5.0K lbs Form-R total is MIXED - air releases is 56.8% of the bar. Next segment: off-site transfers at 43.2%. Leading chemical by pounds: n-Hexane.
Carcinogen-classified pounds vs other reported pounds
Same cumulative TRI total as above, split by EPA/IARC carcinogen classification on each chemical: pounds share, not chemical count. Classification is not a site health-risk score.
LIGHT volume MIXED pathway CARC-MID
Marathon Petroleum Co - Wellsville Oh Asp Terminal is an EPA Toxics Release Inventory reporter in Wellsville, OH, in the petroleum bulk terminals sector. It reported 795 lbs of releases across 10 chemicals in 2023, and 5.0K lbs in total across its 2019-2023 reporting years. That ranks 11,232 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In Ohio's 1,299 reporting TRI sites, pounds #1 is not chemical-count #1. Marathon Petroleum Co - Wellsville Oh Asp Terminal is pounds #752 and chemical-count #94 at 5.0K lbs. Ineos Nitriles USA LLC leads reported pounds (42.4M lbs) at 31 chemicals (chemical-count #10). Heritage Thermal Services leads chemical count at 217 chemicals (431.4K lbs, pounds #116). Reported volume fell against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Mason Color Works Inc.; W H Sammis Plant; Heritage Thermal Services; Titanium Metals Corp. Similar-scale Petroleum Bulk Terminals peers outside Ohio: Reladyne West LLC; Sun Coast Resources LLC; Citgo Port Everglades Terminal; Alta Fuels LLC - Pueblo Plant. Other Marathon Petroleum Corp sites in this extract: Blanchard Refining Co LLC; Marathon Petroleum Co LP; Marathon Mandan Refinery; Catlettsburg Refining LLC. Largest disclosed chemicals by pounds: n-Hexane; Polycyclic aromatic compounds; Cyclohexane; Benzene.
Marathon Petroleum Co - Wellsville Oh Asp Terminal is a LIGHT · MIXED-pathway Form-R site in Wellsville, OH: 5.0K lbs across 11 chemicals (4 carcinogen-classified, CARC-MID). No single media clears 70% of the bar (lead segment air releases at 56.8%). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Reladyne West LLC and Sun Coast Resources LLC.
Marathon Petroleum Co - Wellsville Oh Asp Terminal vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
5.0K lbs Top 43% higher than 57% of 25,986 reporting TRI facilities
Each bar is a $1M-wide band; taller bars hold more reporting TRI facilities. The dashed line and filled bar mark this facility. Hover, focus, or tap a bar for its full count, share, and position.
Source U.S. Environmental Protection Agency, Toxics Release Inventory · 2023 reporting year
Marathon Petroleum Co - Wellsville Oh Asp Terminal in the Petroleum Bulk Terminals sector extract
Among the 695 Petroleum Bulk Terminals facilities in this database, Marathon Petroleum Co - Wellsville Oh Asp Terminal reports the 270th-largest volume (5.0K lbs). Scale peers outside Ohio include Reladyne West LLC and Sun Coast Resources LLC.
Sector rank uses reported TRI pounds only. Share callouts need ≥1,000 lbs so tiny totals cannot mint a false signal.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Marathon Petroleum Co - Wellsville Oh Asp Terminal's total reported releases fell from 1.4 thousand lb in 2022 to 795 lb in 2023, based on EPA TRI filings.
- Marathon Petroleum Co - Wellsville Oh Asp Terminal's air releases fell from 1.4 thousand lb in 2022 to 795 lb in 2023, based on EPA TRI filings.
Marathon Petroleum Co - Wellsville Oh Asp Terminal Form-R facts
Compare this facility
See how Marathon Petroleum Co - Wellsville Oh Asp Terminal stacks up against nearby facilities and the typical reporter.
189.5× more than the comparison
2.8× more than the comparison
Comparison reflects reported pounds and chemical counts, not toxicity or health risk. Averages cover facilities reporting any release.
How does this facility release toxic chemicals?
How Marathon Petroleum Co - Wellsville Oh Asp Terminal releases toxic chemicals into the environment. Total: 5.0K lbs.
Emissions Trend Summary
From 2019 to 2023, total releases decreased by 71% (2.8K lbs to 795 lbs).
Marathon Petroleum Co - Wellsville Oh Asp Terminal: annual Form-R pounds
LIGHT site · MIXED pathway · TRI years 2019–2023
- 2019 0
- 2022 0
- 2023 0
What this shows Marathon Petroleum Co - Wellsville Oh Asp Terminal year-over-year reported totals (decreased by 71% from 2019 to 2023). TRI figures are self-reported estimates and can swing with production, waste handling, and reporting changes, not only with controls. Lead chemical in the extract: n-Hexane.
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 2.8K lbs | 9 |
| 2022 | 1.4K lbs | 10 |
| 2023 | 795 lbs | 10 |
Chemical Releases
Aggregated across all reporting years (2019–2023). 4 of 11 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| n-Hexane | 2.2K lbs | - |
| Polycyclic aromatic compounds | 1.9K lbs | Carcinogen |
| Cyclohexane | 332 lbs | - |
| Benzene | 195 lbs | Carcinogen |
| Xylene (mixed isomers) | 172 lbs | - |
| Benzo[g,h,i]perylene | 73 lbs | - |
| Lead And Lead Compounds | 54 lbs | - |
| Naphthalene | 24 lbs | Carcinogen |
| Ethylbenzene | 21 lbs | Carcinogen |
| Toluene | 10 lbs | - |
| Hydrogen sulfide | 0 lbs | - |
Marathon Petroleum Co - Wellsville Oh Asp Terminal in Columbiana
Nearest TRI Facilities to Marathon Petroleum Co - Wellsville Oh Asp Terminal
Closest other reporters in Ohio - including Mason Color Works Inc., W H Sammis Plant, Heritage Thermal Services, ordered by distance.
Showing 8 of 1,298 other reporting facilities in Ohio.
Similar Petroleum Bulk Terminals Facilities
Other Petroleum Bulk Terminals facilities with similar total release volumes (±80%), outside Ohio - e.g. Reladyne West LLC, Sun Coast Resources LLC, Citgo Port Everglades Terminal.
Compare beyond Ohio
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Marathon Petroleum Co - Wellsville Oh Asp Terminal on cumulative reported pounds (5.0K lbs) and distinct chemical count (11). Release-pound peers include Micron Industries LLC, Veritas Steel, Evonik Corp. Chemical-count peers include Puerto Rico Energy LLC - Bayamon Terminal, Lanco Manufacturing Corp, Buckeye Caribbean Terminals LLC (former Scyi). Neighborhoods are forced disjoint so each axis surfaces a different set of sites.
Similar reported release pounds
Nearest out-of-state reporters (≥1,000 lbs) by absolute TRI pounds, not same-industry or same-county neighbors.
Similar chemical count
Nearest out-of-state reporters by distinct Form-R chemicals (deduped against the release-pound neighborhood).
- Puerto Rico Energy LLC - Bayamon Terminal Bayamon, PR · Petroleum Bulk Terminals 11 chemicals
- Lanco Manufacturing Corp San Lorenzo, PR · Chemicals 11 chemicals
- Buckeye Caribbean Terminals LLC (former Scyi) Yabucoa, PR · Petroleum Bulk Terminals 11 chemicals
- Limetree Bay Terminals LLC DBA Ocean Point Terminals Christiansted, VI · Petroleum Bulk Terminals 11 chemicals
Other Marathon Petroleum Corp Facilities
Same-parent TRI sites ranked by reported releases - including Blanchard Refining Co LLC, Marathon Petroleum Co LP, Marathon Mandan Refinery.
About TRI Data
Data as of 2023 reporting year. Source: U.S. Environmental Protection Agency (EPA) Toxic Release Inventory.
On this page the largest disclosed chemicals include n-Hexane, Polycyclic aromatic compounds, Cyclohexane, Benzene; nearby reporters include Mason Color Works Inc.. Marathon Petroleum Co - Wellsville Oh Asp Terminal stamps LIGHT volume · MIXED pathway · CARC-MID carcinogen-lbs on this Form-R extract. Totals are self-reported estimates under EPCRA §313, not measured stack emissions or a health-risk score.
Use and verify this record
This Marathon Petroleum Co - Wellsville Oh Asp Terminal TRI extract (LIGHT · MIXED · CARC-MID · lead n-Hexane) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Marathon Petroleum Co - Wellsville Oh Asp Terminal totals are self-reported EPCRA §313 estimates for Wellsville, OH, latest year 2023. Form-R rows span 2019–2023 (3 years). NAICS 424710 · Petroleum Bulk Terminals. 0.9% of Columbiana TRI pounds in this extract. Nearest ABS peer: Micron Industries LLC (Δ 0 lbs). Pounds ≠ exposure.
Marathon Petroleum Co - Wellsville Oh Asp Terminal stamps LIGHT · MIXED pathway (air releases leads at 56.8%). Pipeline-rendered EPA Form-R only - no editor-typed pounds. Corrections: editorial policy.
All federal data sources used on this page
- EPA Toxics Release Inventory (TRI) Basic Data Files - annual self-reported chemical-release filings. epa.gov
- EPA TRI Program reference - how chemicals and reported releases are counted. epa.gov
- EPA Facility Registry Service - facility location and identity. epa.gov
- EPA ECHO - regulatory and compliance context. epa.gov
- EPA Envirofacts - the EPA data warehouse exposing these datasets. epa.gov